Selection ViewpointCursor::getCursor(const SelectableList& selectables) {
Selectable* closestObject = NULL;
Selection closestIntersection;
if (updatePending) {
closestIntersection.distance = std::numeric_limits<float>::max();
glm::vec3 p = getUserPosition();
glm::vec3 d = getCursorDirection();
// First up, see if we intersect one of the objects.
for (SelectableList::const_iterator it = selectables.begin(); it < selectables.end(); ++it) {
Selectable* s = *it;
Selection i = s->intersect(p, d);
if (i.distance > 0 && i.distance < closestIntersection.distance)
{
closestObject = s;
closestIntersection = i;
}
}
updatePending = false;
// Return the closest object, if there was one.
if (closestObject != NULL) {
cursorPlaced = true;
cursor3D = closestIntersection.pos;
cursorNormal = closestIntersection.normal;
closestIntersection.rotationMatrix = getCursorRotation();
closestIntersection.object = closestObject;
}
// intersect with magic plane so at least the cursor appears...
else {
glm::vec3 userDirection = getViewDirection();
Plane plane(p + userDirection*planeDistance, userDirection);
Plane::Intersection ip = plane.intersect(p, d);
if (ip.intersects) {
cursorPlaced = true;
cursor3D = ip.intersectionPoint;
cursorNormal = userDirection*-1.0f;
cursorPlaced = true;
closestIntersection.pos = cursor3D;
closestIntersection.normal = cursorNormal;
closestIntersection.rotationMatrix = getCursorRotation();
closestIntersection.object = NULL;
}
}
}
return closestIntersection;
}
void MeshEditorInstance::tickTools()
{
EditorInstance::tickTools();
if(m_selectedVolume)
{
m_selectedVolume->location = getCursorLocation();
m_selectedVolume->rotation = getCursorRotation();
m_selectedVolume->scale = getCursorScale();
}
}
